Combined air filter and cleaner unit



FIG. 1 is a top, front perspective view of a combined air filter and cleaner unit showing our new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a right side elevational view thereof; and,

FIG. 6 is a top plan view thereof. 

The ornamental design for combined air filter and cleaner unit, substantially as shown and described. 